Patent Grant
9308340
The present disclosure relates to tube holders, and more specifically, to endotracheal tube holders.
Endotracheal tubes are used in a variety of settings including in critical care, intensive care units, or under general anesthesia. However, most endotracheal tube holders only allow an endotracheal tube to be held in a single, fixed position, which can create problems, especially during long term use. The present disclosure provides endotracheal tube holders that allow easy adjustment of the position of an endotracheal tube either before or during use.
One embodiment consistent with the present disclosure includes an endotracheal tube holder. The endotracheal tube holder comprises a body portion, wherein the body portion is elongated and comprises an elongated opening. The endotracheal tube holder also comprises a tube grasping mechanism, and an attachment mechanism for adjustably securing the tube grasping mechanism to the body portion. The attachment mechanism comprises a rod member configured to pass through the elongated opening, a widened proximal body connected to a proximal end of the rod member, and a widened distal body attached to a distal end of the rod member, having a size that prevents the widened distal body from passing through the elongated opening to secure the attachment mechanism to the body portion.
In certain embodiments of the present disclosure, the elongated opening includes a wide opening for receiving the widened distal body. In certain embodiments, the widened distal body has a spring like property along at least one dimension configured to being forcibly pushed through the wide opening and for locking behind the body portion. Moreover, in certain embodiments, the widened distal body has a spring like property along at least one dimension configured to being forcibly pushed through a section of the elongated opening and for locking behind the body portion.
In certain embodiments of the present disclosure, the rod member comprises a threaded rod. In certain embodiments, at least one of the widened proximal body and the widened distal body includes a threaded locking cap such that rotation of the locking cap with respect to the threaded rod changes a distance between the widened proximal body and the widened distal body to clamp or release the attachment mechanism to or from the body portion.
In certain embodiments of the present disclosure, the tube grasping mechanism comprises a widened end surface in which a middle opening is formed for receiving the rod member, wherein the rod member is rigidly connected to the widened distal body at the distal end, and wherein the widened proximal body includes the locking cap, such that the threaded rod passes through the elongated opening and the middle opening and is threadably connected to the locking cap.
In certain embodiments of the present disclosure, the tube grasping mechanism comprises a widened end surface in which a middle opening is formed for receiving the rod member, wherein the widened end surface is for attaching to the body portion, and wherein the widened proximal body and the widened distal body sandwich between them the body portion and the widened end surface. In certain embodiments, the body portion is curved for conforming to the shape of the face of a patient.
In certain embodiments, the tube grasping mechanism comprises an upper semicircular region and a lower semicircular region pivotably attached to the upper semicircular region. In certain embodiments, the upper semicircular region and the lower semicircular region comprise teeth to lock the lower semicircular region to the upper semicircular region and secure a tube therebetween. In certain embodiments, the lower semicircular region includes a tail end and the upper semicircular region includes a pincer configured to receive and lock the tail end and accordingly secure a tube between the upper and the lower semicircular regions. In certain embodiments, the tail end is toothed on at least one surface.
In certain embodiments, the body portion further comprises widened pad regions at opposite ends for lying against the face of a patient. In certain embodiments, the tube holder further comprises a band opening on each of the widened pad regions for receiving a flexible band for tying around the head or the neck of the patient.
In certain embodiments, the tube holder further comprises an arm that connects the tube grasping mechanism to the attachment mechanism. In certain embodiments, the elongated opening includes a toothed surface on at least one side.
Another embodiment consistent with the present disclosure includes an endotracheal tube holder which comprises a body portion, wherein the body portion is elongated and comprises an elongated opening, and a tube grasping mechanism rigidly connected to an attachment mechanism for adjustably securing the tube grasping mechanism to the body portion. In certain embodiments, the attachment mechanism comprises a rod member that passes through the elongated opening, and widened surfaces attached to the opposite sides of the rod member, which install on opposite sides of the elongated opening form a clamping mechanism for securing the tube grasping mechanism to the body portion.
In certain embodiments, the rod member comprises a threaded body that is connected at least one end to a threaded locking cap such that rotation of the locking cap with respect to the rod member changes a distance between the widened surfaces on opposite sides of the elongated opening to clamp or release the attachment mechanism.
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate exemplary embodiments consistent with the principles of the present invention.
The present disclosure provides endotracheal tube holders that will allow adjustment of the position of an endotracheal tube either before or during use.
As shown in
The body portion 20 can also include additional components that allow comfortable attachment to a patient. For example, the body portion 20 can include two enlarged pad regions 55 at opposite ends. The enlarged pad regions 55 provide a widened surface area for placement against the patient's body, e.g., against the patient's cheeks or head. In addition the endotracheal tube holder can include regions for attachment to a band of flexible material. For example, in certain embodiments the endotracheal tube holder includes band openings 60 located at opposite ends. The band openings 60 can receive a band such as a flexible elastic band, tape or other material to secure the endotracheal tube holder to a patient. In addition, the pad regions can include an adhesive or tacky surface that prevents movement or sliding, and may also include cushioned or padded surfaces. Moreover, in certain embodiments, the body portion 20 can further attach to an elongated pad 51. On one surface, the elongated pad 51 can attach to the back of the body portion 20. On the other surface, the elongate pad 51 attaches to the a region of the patient's face, for example, between the upper lip and the nose of the patient. In certain embodiments, the elongated pad 51 can be made of a soft material to provide a cushion against the harder surface of the body portion 20 and to provide comfort to the patient. In certain embodiments, such as those shown in
As discussed above, the endotracheal tube holder 10 can include a tube grasping mechanism 30. The tube grasping mechanism allows secure attachment of an endotracheal tube 65, thereby preventing unintended movement or dislodgement. The tube grasping mechanism 30 can include a variety of different configurations. For example, as shown in
The tube grasping mechanism can also include systems to allow secure closure of the tube grasping mechanism. For example as shown in
As alternatives to the tube grasping mechanism depicted in
The tube grasping mechanism 30 can be connected to the attachment mechanism 40 to allow adjustable connection to the body portion 20. In some cases, the tube grasping mechanism 30 is connected to the attachment mechanism via a rigid connector or arm 105. The rigid connector or arm 105 allows the tube grasping mechanism 30 to be firmly positioned once the attachment mechanism 40 is secured in place along the body portion 20, as described further below.
As discussed above, the attachment mechanism 40 can include a system for adjustably securing the grasping mechanism 30 to the body portion 20. As shown in
The rod portion 115, the widened rod end 125, and the widened end surface 135 can include a variety of configurations. In some cases, the rod portion 115 includes a rod or similar elongated structure. In addition, the rod portion 115 can include a threaded body that passes through the elongated opening 50. The threaded rod portion 115 can be connected to the widened rod end 125 and the widened end surface 135 in a variety of ways. For example, in some cases, the rod portion 115 forms a threadable (e.g., nut and bolt arrangement) connection with at least one of the widened rod end 125 and the widened end surface 135. In some cases, as shown in
In addition, as described above and shown in
The attachment mechanism 40 can include a system to allow the widened rod end 125 and the locking cap 150 to clamp to the body portion 20 and the widened end surface of the tube grasping mechanism 30. For example, as shown, the dimensions of the widened rod end 125 and the locking cap 150, and also the dimensions of the widened end surface 135 and the upper lip 165, prevent them from passing through the elongated opening 50. In addition, force can be applied to the widened rod end 125 and the widened end surface 135 to allow the surfaces to clamp the body portion and hold the body portion 20 in place. For example, as shown in
In some embodiments, the upper and lower semicircular regions 870 and 875, and the locking lever 878 provide a tube-locking mechanism to receive and secure a tube. For example, in certain embodiments, the lower semicircular region 875 includes a lower handle 876 and end section 877. Moreover, the locking lever 878 includes a lever handle 879. In some embodiments, the region attaching the upper and lower semicircular regions 870 and 875 is made of a flexible material. When using the tube holder, to receive a tube, a user inserts the end section 877 through the gap 881 by, for example, pulling lever 878 away and opening the gap 881. The user thus creates a tube receiving area between the upper and lower semicircular regions 870 and 875. The user can then insert the tube into the tube receiving area. If the area is too narrow for receiving a selected tube, a user can widen the tube receiving area by moving the lower semicircular region 875 away from the upper semicircular region 870 using, for example, the lower handle 876. Similarly, to tighten the tube receiving area around the tube, a user can narrow the tube-receiving area by pushing the lower semicircular region 875 towards the upper semicircular region 870 using, for example, the lower handle 876 or by pushing the lower semicircular region 875 from below. As a result of these narrowing or widening actions, the end section 877 moves up or down through the gap 881.
In some embodiments, the locking lever 878 can lock the end section 877 and secure the tube in place. In the embodiment shown in
Using the above mechanism, a user can insert and lock a tube in endotracheal tube holder 800. The user locks the tube by narrowing the tube receiving area to a size that is snug fit to the tube and then locking the end section 877 with the lever 878. In some embodiments, the inner surface of the upper semicircular region 870 or the lower semicircular region 875 includes a rough surface to create friction with the tube and thus prevent the tube from slipping through the tightened receiving area. In some embodiments, one or both the inner surfaces of the semicircular regions includes some grabbing teeth for creating the friction.
When assembling the endotracheal tube holder 800, an assembler can use the attachment mechanism 840 to attach the tube grasping mechanism 830 to the body portion 820. In some embodiments, the diameter of bulge 845 is almost equal to or slightly less than the diameter of the wide opening 852 and is larger than the width of the narrow slit 853. The diameter of the middle rod 844, on the other hand, is almost equal or smaller than the width of the narrow slit. The diameter of the bulge 845 is also smaller than or almost equal to the dimension of the middle opening 836 in the center of the end surface 835. In these embodiments, the assembler needs little or no force to pass the bulge 845 first through the middle opening 836 and then through the wide opening 852.
Further, in certain embodiments, a disassembler can disassemble the endotracheal tube holder 800. To disassemble the endotracheal tube holder 800, in certain embodiments, the disassembler can remove the attachment mechanism 840 from the body portion and the grasping mechanism. To do that, the disassembler moves the attachment mechanism to the end of the narrow slit 853 where the wide opening 852 is located, such that bulge 845 is positioned behind wide opening 852. The disassembler then removes the attachment mechanism by respectively pulling out the bulge 845 through the wide opening 852 and the middle opening 836. In certain other embodiments, once assembled and in the normal course of use, the endotracheal tube holder 800 will not be disassembled.
In some embodiments, the bulge 845 is made of a flexible material, and its diameter is slightly larger than the width of the wide opening 852. Moreover, as shown in
Further, in certain embodiments, a disassembler can disassemble the endotracheal tube holder 800. In certain embodiments, to disassemble the endotracheal tube holder 800, the disassembler first moves the attachment mechanism to the end of the narrow slit 853 where the wide opening 852 is located, such that bulge 845 is positioned behind wide opening 852. Further, to pull the bulge out of the wide opening 852, the disassembler can first press the bulge 845 to a smaller size before moving through wide opening 852. The disassembler then removes the attachment mechanism by pulling out the bulge 845 through the wide opening 852 and the middle opening 836. In certain other embodiments, once assembled and in the normal course of use, the endotracheal tube holder 800 will not be disassembled.
In some embodiments, the elongated opening 850 does not include a wide opening. In these embodiments, the assembler can press the bulge through the elongated opening or the disassembler may remove the bulge from the elongated opening by shrinking the bulge using the force of pressing or by a pinching force. In various embodiments, an assembler or a disassembler can be a technician or a machine in the manufacturing factory, a technician in the medical facility, or any other end user.
In some embodiments, when using the assembled endotracheal tube holder 800, the user moves the grasping mechanism 830 and the attachment mechanism 840 along the middle section 825. During these movements, the middle rod 844 moves through narrow slit 853. In these situations, bulge 845, which is larger than narrow slit 853, holds the attachment mechanism attached to the middle section 825. When the user moves the grasping mechanism 830 to a desired position, the user then secures the grasping mechanism in place by tightening the attachment mechanism 840 such that it clamps the middle section 825 of body portion 820 to the widened end surface 835 of the tube grasping mechanism 830.
In some embodiments, the user performs the tightening by turning knob handle 842 in one direction, and performs the untightening and thus unclamping by turning the knob handle 842 in the opposite direction. The tightening and untightening are achieved by a set of tightening features included in the widened end surface 835 of the tube grasping mechanism 830 and the knob cap 843 of the attachment mechanism 840.
In some embodiments, as shown in
The tightening features of the knob cap 843 can be included on the rear surface of the knob cap 843. These features include a tension tang 846 and a positive stopper 847.
When the assembler assembles the three parts of the endotracheal tube holder 800, that is, the body portion 820, the tube grasping mechanism 830, and the attachment mechanism 840, the tightening features of inner surface of the knob cap 843 fit against the tightening features of the protruded surface 831. For example, in the embodiments shown in
In the assembled configuration, the attachment mechanism 840 sandwiches together the body portion 820 and the grasping mechanism 830. In particular, a clamping mechanism is formed by three pieces, the bulge 845 as the rear end, the knob cap 843 as the front end, and the middle rod 844 connecting these two ends. The two clamping ends sandwich between them two sandwiched surfaces, that is, the middle section 825 of the body portion and the widened end surface 835 of the tube grasping mechanism. The length of the middle rod 844 is such that in the assembled configuration and when the knob is in the open position, the space between the two ends of the clamp is almost the same as the combined thickness of the sandwiched surfaces. Therefore, in this position, the protruded surface 831 attaches to the inner surface of the knob cap 843. The length of the middle rod 844 is also such that in the open position of the knob, the clamp ends do not press the sandwiched surfaces too tightly, allowing them to move freely against each other.
Upon such attachment, tightening features of the two surfaces fits against each other. For example, tension tang 846 fits in the upper portion of the groove 832 and stopper 847 fits inside the lower right cut out next to the lower stopper tooth 833. Because the pieces are not tightly clamped in this situation, a user can move the tube grasping mechanism 830 along the middle section 825 by moving the middle rod 844 inside the elongated opening 850. After moving the tube grasping mechanism to the desired position, the user can secure it in place by tightening the clamping mechanism. In the embodiment shown in
During the tightening turn, the movement of the tightening features against each other determines the range of the turn and also creates the tension required for tightening the clamp. For example, the combination of the stopper and the stopper teeth creates a stopping mechanism that limits the range of tightening turn, and the combination of the tension tang and the groove creates a clamping tension. Regarding the stopping mechanism, when the user turns the knob handle counter-clockwise, the stopper 847 moves counter-clockwise inside the lower right cut out until it reaches the side stopper tooth 834. Side stopper tooth 834 thus stops the knob handle from turning further.
Regarding the clamping tension, the closing turn causes the sandwiched surfaces to push against the clamping surfaces. For example, on the rear end of the clamping mechanism, the bulge contacts the surface of the middle section. On the front side of the clamping mechanism, the knob cap 843 contacts the widened end surface, and more specifically, the tip of the tension tang 846 contacts the surface of the groove 832. The surface of the groove is made with a gradual taper in its depth. That is, the upper part 832-U of the groove is deeper than its lower part 832-L. When the knob turns counter clockwise from the open position to the closed position, the tension tang 846, which is in contact with the groove at the upper part 832-U, moves to the lower part 832-L of the groove. Due to the change of depth, with this movement the groove pushes the tension tang 846 forward. This forward push transfers through the middle rod 844 to the bulge 845, thus clamping the middle section 825 and the widened end surface 835. In effect, the tightening turn causes the effective total thickness of the sandwiched surfaces to increase, thus adding to the pressure between the sandwiched surfaces and the sandwiching surfaces of the clam.
In various embodiments, characteristics of the clamping mechanism and the clamped surfaces are such that the tightening turn locks the sandwiched surfaces to each other. In some embodiments, these characteristics include the amount of taper in the depth of the groove, the flexibility characteristics of the middle rod, and the friction coefficient between the two sandwiched surfaces, that is, the contacting surfaces of the body portion and the widened end surface. These characteristics are such that the tightening turn increases the contact friction between the two sandwiched surfaces by an amount that is sufficient for preventing the tube grasping mechanism 830 from moving with respect to the body portion 820.
In some embodiments, a user can release the tube grasping mechanism by turning the knob clockwise from the closed position to the open position. Such opening turn causes the tension tang 846 to move from the shallower lower part 832-L of the groove to the deeper upper part 832-U of the groove. This move decreases the effective total thickness of the sandwiched surfaces, thus reducing the tension in the middle rod 844. Accordingly, this untightening turn reduces the contact friction between the two sandwiched surfaces, allowing the tube grasping mechanism 830 to move with respect to the body portion 820.
It will be apparent to those skilled in the art that additional various modifications and variations can be made consistent with the present disclosure. Other embodiments consistent with the tube holder will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
This application claims priority under 35 U.S.C. §119 to U.S. Provisional Patent Application No. 61/410,979, which was filed on Nov. 8, 2010, and is herein incorporated by reference.
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